INDUSTRY COMPONENT

Rotor Body

Rotor body is the central rotating component in blade holder/rotor assemblies that transfers torque and supports blades in industrial machinery.

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Component Specifications

Definition
The rotor body is a precision-engineered cylindrical or disc-shaped component that serves as the core rotating element in blade holder or rotor systems. It provides structural support for attached blades or cutting elements while transmitting rotational force from the drive mechanism. Engineered for balanced rotation at operational speeds, it features mounting interfaces for blades, balancing features, and often includes cooling channels or weight-reduction cavities. Critical for converting rotational energy into cutting, mixing, or material processing action in various industrial applications.
Working Principle
The rotor body operates on rotational dynamics principles, converting input torque from a motor or drive system into rotational motion. As it spins, centrifugal force acts on attached blades, creating the cutting, mixing, or processing action. The body maintains structural integrity under rotational stresses while providing precise blade positioning. Balance is maintained through symmetrical design and sometimes balancing weights to minimize vibration at operational RPMs.
Materials
Typically manufactured from high-strength alloy steels (AISI 4140, 4340), stainless steels (304, 316), or aluminum alloys (6061-T6, 7075-T6) depending on application requirements. Heat treatment (quenching and tempering) often applied to achieve required hardness (HRC 28-45) and fatigue resistance. Surface treatments may include nitriding, chrome plating, or ceramic coatings for wear resistance.
Technical Parameters
  • Length 200-800 mm
  • Weight 15-120 kg
  • Max RPM 3000-12000
  • Diameter 150-500 mm
  • Balance Grade G6.3 per ISO 1940
  • Mounting Holes 6-24 blade mounting positions
  • Shaft Connection Keyway, spline, or tapered fit
Standards
ISO 1940-1, ISO 11342, DIN 45665, DIN 45691

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rotor Body.

rotor body industrial rotor blade holder component rotating machinery part rotor assembly precision rotor balanced rotor machinery rotor Rotor Body in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Blade Holder / Rotor

A rotating assembly that securely holds and positions cutting blades within a pellet cutter.

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Engineering Analysis

Risks & Mitigation
  • Imbalance causing excessive vibration
  • Fatigue failure from cyclic loading
  • Corrosion in harsh environments
  • Bearing wear from misalignment
  • Blade detachment due to mounting failure
FMEA Triads
Trigger: Material fatigue from cyclic stress
Failure: Crack propagation leading to catastrophic fracture
Mitigation: Regular ultrasonic testing, proper material selection with adequate fatigue strength, stress relief heat treatment
Trigger: Dynamic imbalance during operation
Failure: Excessive vibration damaging bearings and surrounding components
Mitigation: Precision balancing to ISO 1940 standards, regular vibration monitoring, proper installation alignment
Trigger: Corrosion in chemical processing environments
Failure: Material degradation reducing structural integrity
Mitigation: Corrosion-resistant materials (stainless steel), protective coatings, regular inspection for pitting

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.05 mm for critical dimensions, ±0.01 mm for bearing surfaces, concentricity within 0.02 mm TIR
Test Method
Dynamic balancing per ISO 1940, ultrasonic testing for material defects, dimensional verification with CMM, runout measurement with dial indicators

Buyer Feedback

★★★★☆ 4.6 / 5.0 (8 reviews)

"Great transparency on the Rotor Body components. Essential for our Machinery and Equipment Manufacturing supply chain."

"The Rotor Body we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

"Found 38+ suppliers for Rotor Body on CNFX, but this spec remains the most cost-effective."

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Frequently Asked Questions

What is the primary function of a rotor body in industrial machinery?

The rotor body serves as the central rotating component that supports blades or cutting elements while transmitting torque from the drive system to create the required processing action through rotational motion.

How is balance maintained in rotor bodies?

Balance is achieved through precision machining, symmetrical design, and sometimes addition of balancing weights. Rotors are dynamically balanced to ISO 1940 standards (typically G6.3 grade) to minimize vibration at operational speeds.

What materials are commonly used for rotor body manufacturing?

Common materials include alloy steels (AISI 4140/4340) for high-strength applications, stainless steels (304/316) for corrosion resistance, and aluminum alloys (6061/7075) for weight-sensitive applications, often with heat treatment for enhanced properties.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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Rotor / Moving Element Rotor Core